Oil-burner.



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FNK E. NELSON, 0F LOS ANGELES, CALIFORNIA.

ort-nomma Specification of Letters Patent.

Patented Mar. 14, 1916.

Application filed J une 22, 1915. Serial No. 35,556.

To all whom it may concern:

Be it known that l, FRANK E. NELSON, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented new and useful Improvements in Oil-Burners, ofwhich the following is a specification. n

My present invention pertains to oil or liquid-fuel burners such as aredesigned to be inserted in the tire boxes of stoves and ranges; and itcontemplates the provision of a burner, of the type stated, embodyingsuch a construction and relative arrangement of parts that heated air issupplied both .above and below the body of ame with a view to promotingcombustion.

The invention also contemplates the provision in a burner of the kindstated of iinproved means for regulatingthe volume of air supplied tothe burning oil.

Other advantageous featuresof the invention will be fully understoodfrom the following description and claims when the same are read inconnection with the drawings, acco-mpanying and forming part of thisspecification, in which: c

Figure 1 is a side elevation of my 1inproved burner. Fig. 2 is alongitudinal vertical section of the same. Fig. 3 is an elevation of theouter end of the burner. Fig. 4 is a transverse section taken in theplane indicated by the line 4-'4 of Fig. 2. Fig. 5 is an enlarged detailsection.

Similar numerals of reference designate corresponding parts in all ofthe views of the drawings.

The hollow body 1 of theA burner is provided at its forward end and in'its bottom with an opening 12 for the entry of air, and at its otiteror rear end the said body 1 merges into an enlargement 2havinganexterior flange 3, designed to bring up against the outer sideof a stove or range wall. The said portion 2 is equipped with an1nclined removable door 4, and on said door are handles 5 for theconvenient manipula.- tion thereof. In the door are two (more or less)slots 7 which receive bolts 6. The said bolts serve for the adjustableconnection of the controller 8 and are preferably, though notnecessarily, equipped with wing-nuts as shown. It.will also be noticed,by reference to Fig. 2, that the enlarged portion of the body isprovided with an opening 9 for the introduction of oil and that theupper portion of the inner end of the enlargement is open, while theto-p of the body 1 adjacent to the said opening is slightly inclinedl[doviiwardly and outwardly as indicated Slidably-arranged in theenlarged portion 2 of the body is the oil pan 11. The supports of thesaid pan bear on the bottom of the body 1 and hence it 'will be manifestthat the pan can be adjusted relative to the body portion 10 to increaseor-diminish the vclume of air supplied below the burning oi 1t will alsobe manifest that by adjusting the pan relative to the controller 8, thevolume of air supplied above the burningoil may be regulated, and thislatter regulation may be further carried out by raising or lowering thecontroller 8 and adjustably fixing the same with respect'to the door 4.

After the burner is placed in operation the body l will be highlyheated, and from this it follows that the air that enters the opening 12will be heated to a considerable extent en route to the points at whichsuch air is commingled with the burning oil. rThis supply of heated airunder and over and up in front of the Hamesinduces and supportsperfectcombustion, and the pro er combustion is further promoted bythe act thatheated air is suppliedto the burning hydro-carbon.

It will further be manifest from the foregoing that when the-door 4 isremoved access may be gained to the oil pan 11 either to adjust the saidoil pan or to remove the same for cleaning or for any other purpose.

The capacity of adjustment of the oil pan 11` and the controller 8 willbe appreciated as important features of my invention when itis statedthat drafts are so variable and difficult to contend with that perfectcombustion cannot be obtained unless eflicient means is provided forincreasing or diminishingjthe volume of air supplied to the burning oilas occasion demands.

In order to use cool air with a `view to preventing deterioration of themetal by the high heat, I prefer to' provide the door 4 with a narrowhorizontal slot 13 and narrow Vertical slots 14, relatively arranged asshown in Fig. 3; and l also prefer to provide narrow spaces between theends of the controller 8 andthe end walls of the body enlargement 2.Thus the air that enters through the slots 13 and 14 prevents the heatfrom injuring the metal ofthe body, but does not materially cool the airsupplied through the opening 12 and the forward portion of the body 1,and by reason of the latter air being permitted to pass between the endsof the controller 8 and the end walls of the body'portion 2 it will bes'een that the llame is completely surrounded by heated air.

The oil supply pipe 15 is preferably provided with a valve 16fixed toone end of the body portion 2, and the discharge end of said pipe 15 ispreferably s aced above izihe opening 9, Fig. 3 so as to a ord a sighteed. i

When desired the bottom of the body portion 2 may be slightly inclineddownwardly and rearwardly, Figs. 1 and 2, and may be provided at thelowermost point with a drain 17 for the safe escape of such oil as mayoverliow or drip from the pan 1-1.

One of the air spaces at the ends of the controller 8 is clearly shownin Fig. 5.

Having described my invention, what I claim and desire to secure byLetters-Patent, is:

1. An oil burner comprising a hollow body having an opening in theforward portion of its bottom and also having an enlargement at itsouter end; the upper portion of the inner end of said enlargement beingopen, and the top of the body being extended outwardly and downwardlybeyond saidy opening, an inclined door arranged on the enlargement ofthe body, a controller adjustably connected with and extendingdownwardly and inwardly froml said door, an oil pan adjustable in theenlarged portion of the body and relative to the said inclined wallportion of the body and the controller, and means for supplying liquidfuel to Said pan.

2. In an oil burner, the combination with a hollow body having aforwardly extending conduit for the entry of air and also having aforwardly disposed opening for the passage of flames, a controllerarranged in the body back of said opening, and an oil pan arranged inthe body and under and spaced from said controller and above and in rearlof and spaced from said conduit,whereby largement and an opening in theupper portion of the forward end of the said enlargement for the passageof flame, an oil pan arranged in said enlargement of the body, supportsfor said pan slidably-arranged on the bottom of the body, and means inthe body for coperating with the pan to form a conduit to carry air toapoint above liquid fuel burning in the pan.

4.. In an oil burner, the combination of a hollow body having aforwardly-extending conduit for the entry of airand also having aforwardly-directed opening'above the rear portion of said conduit forthe passage of flames and further having air-induction means in itsrea'r wall, a controller arranged in the body with its ends spaced fromthe ends or sides of the rear portion of the body, and an oil panarranged in the body and interposed between and spaced from said conduitand controller, whereby the flame of burning oil in the pan is entirelysurrounded by heated air and at the same time cool air is admitted toprevent injury to the metal.

5. In an oil burner, the combination of a hollow body having a conduitfor the entry of air and also having a forwardly-directed opening abovethe rear portion of said conduit for the passage of lames,'a controllerarranged .in the rear portion of the body with its ends spaced from theends of the body, and an oil pan in the body and interposed between andspaced-from said conduit and controller, whereby heated air is suppliedto the flame of burning il in the pan above, below and at the sid`es ofthe llame.

6, An oil burner, comprising a hollow body having a forwardly-disposedopening for the passage of flames and also having openings in its backwall, an oil pan arranged in the body, a controller back of the oil panand spaced at its ends from the walls of the body and forming with thepau a conduit for supplying air above the pan, and means coperating withthe oil pan to form a conduit to supply air forwardly below the pan andthe flame.

In testimony whereof I have hereunto set my'hand in presence of twosubscribing witnesses.

FRANK E. NELSON.

Witnesses:

R. S. STEARNS, J. L. MILLS.

